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Civil and Environmental Engineering Commons

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Articles 1 - 15 of 15

Full-Text Articles in Civil and Environmental Engineering

Conditioning Films Formed By Algal Biopolymers In Seawater Reverse Osmosis Desalination, David Ladner, John Jurevis, Mark Clark Dec 2014

Conditioning Films Formed By Algal Biopolymers In Seawater Reverse Osmosis Desalination, David Ladner, John Jurevis, Mark Clark

David A Ladner

No abstract provided.


Bioprospecting To Discover Local Algae For Biofuel Production, Cassidy Laird, Muriel Steele, David Ladner Dec 2014

Bioprospecting To Discover Local Algae For Biofuel Production, Cassidy Laird, Muriel Steele, David Ladner

David A Ladner

No abstract provided.


Integrating Algaculture Into Small Wastewater Treatment Plants: Process Flow Options And Life Cycle Impacts, Muriel M. Steele, Annick Anctil, David A. Ladner Dec 2014

Integrating Algaculture Into Small Wastewater Treatment Plants: Process Flow Options And Life Cycle Impacts, Muriel M. Steele, Annick Anctil, David A. Ladner

David A Ladner

Algaculture has the potential to be a sustainable option for nutrient removal at wastewater treatment plants. The purpose of this study was to compare the environmental impacts of three likely algaculture integration strategies to a conventional nutrient removal strategy. Process modeling was used to determine life cycle inventory data and a comparative life cycle assessment was used to determine environmental impacts. Treatment scenarios included a base case treatment plant without nutrient removal, a plant with conventional nutrient removal, and three other cases with algal unit processes placed at the head of the plant, in a side stream, and at the …


Nanoparticle Rejection By Microfiltration And Ultrafiltration Membranes, David A. Ladner, Muriel M. Steele, Alex Weir, Kiril Hristovski, Paul Westerhoff Dec 2014

Nanoparticle Rejection By Microfiltration And Ultrafiltration Membranes, David A. Ladner, Muriel M. Steele, Alex Weir, Kiril Hristovski, Paul Westerhoff

David A Ladner

No abstract provided.


Mixtrophic Growth Of Chlorella Protothecoides For Wastewater Treatement, Muriel Steele, Daniel Carey, David Ladner Dec 2014

Mixtrophic Growth Of Chlorella Protothecoides For Wastewater Treatement, Muriel Steele, Daniel Carey, David Ladner

David A Ladner

No abstract provided.


Assessing And Reducing Energy Requirements For Membrane-Based Algal Biomass Harvesting, Muriel M. Steele, Daniel Carey, Pooja Mistry, David A. Ladner Dec 2014

Assessing And Reducing Energy Requirements For Membrane-Based Algal Biomass Harvesting, Muriel M. Steele, Daniel Carey, Pooja Mistry, David A. Ladner

David A Ladner

No abstract provided.


Net Environmental Benefit - Life Cycle Assessment Of Algaculture At Wastewater Treatment Plants, Muriel Steele, Annick Anctil, David Ladner Dec 2014

Net Environmental Benefit - Life Cycle Assessment Of Algaculture At Wastewater Treatment Plants, Muriel Steele, Annick Anctil, David Ladner

David A Ladner

No abstract provided.


Navigating The Academic Job Search For Environmental Engineers: Guidance For Job Seekers And Mentors, David Ladner, Stephanie Bolyard, Defne Apul, Andrew Whelton Dec 2014

Navigating The Academic Job Search For Environmental Engineers: Guidance For Job Seekers And Mentors, David Ladner, Stephanie Bolyard, Defne Apul, Andrew Whelton

David A Ladner

Students and postdoctoral associates interested in tenure-track environmental engineering positions have limited resources to aid them. The Student Services Committee (SSC) of the Association of Environmental Engineering and Science Professors (AEESP) organized a workshop to fill some of the need. Newly hired faculty and experienced search committee and department chairs shared information on how to create competitive applications. Students and postdoctoral associates were also provided with individualized feedback on their faculty application packages. Survey data were collected for all participants, and these data are presented in this paper along with tips shared during the workshop and information collected from the …


The Structure-Function Relationship Of Pamam Dendrimers As Robust Oil Dispersants, Nicholas K. Geitner, Bo Wang, Rachel E. Andorfer, David A. Ladner, Pu Chen Ke, Feng Ding Dec 2014

The Structure-Function Relationship Of Pamam Dendrimers As Robust Oil Dispersants, Nicholas K. Geitner, Bo Wang, Rachel E. Andorfer, David A. Ladner, Pu Chen Ke, Feng Ding

David A Ladner

PAMAM dendrimers have recently been investigated as efficient and biocompatible oil dispersants utilizing their encapsulation capacity; however, their high cationic charge density has been shown to be cytotoxic. It is therefore imperative to mitigate cationic charge-induced toxicity and understand the effects of such changes. Presented here is a synergistic experimental and computational approach to examine the effects of varying terminal surface charge on the capacity of dendrimers to disperse model liner, polycyclic aromatic, and hybrid hydrocarbons. Uncharged dendrimers collapse by forming intramolecular hydrogen bonds, which reduce the hosting capability. On the other hand, changing the surface charges from positive to …


Effects Of Aggregation State On Flux Reduction By Superfine Powdered Activated Carbon On Microfiltration Membranes, Mengfei Li, Jaclyn R. Ellerie, David A. Ladner Dec 2014

Effects Of Aggregation State On Flux Reduction By Superfine Powdered Activated Carbon On Microfiltration Membranes, Mengfei Li, Jaclyn R. Ellerie, David A. Ladner

David A Ladner

No abstract provided.


Dendritic Polymer As Biocompatible Oil Spill Dispersants: Molecular Interactions And Effectiveness, Ying Tu, David A. Ladner, Muriel Steele Dec 2014

Dendritic Polymer As Biocompatible Oil Spill Dispersants: Molecular Interactions And Effectiveness, Ying Tu, David A. Ladner, Muriel Steele

David A Ladner

No abstract provided.


Dendritic Polymers As Biocompatible Oil Spill Dispersants, David A. Ladner, Nicholas K. Geitner, Peng Xie, Ying Tu, Priyanka Bhattacharya, Ran Chen, Muriel Steele, Sean Powers, Andrew Whelton, Pu-Chen Ke Dec 2014

Dendritic Polymers As Biocompatible Oil Spill Dispersants, David A. Ladner, Nicholas K. Geitner, Peng Xie, Ying Tu, Priyanka Bhattacharya, Ran Chen, Muriel Steele, Sean Powers, Andrew Whelton, Pu-Chen Ke

David A Ladner

No abstract provided.


Disolved Co2 - An Alternative For Cleaning Inorganic Scale From Ro Membranes, Erin Partlan, David Ladner Dec 2014

Disolved Co2 - An Alternative For Cleaning Inorganic Scale From Ro Membranes, Erin Partlan, David Ladner

David A Ladner

No abstract provided.


Dendritic Polymers As Oil Spill Dispersants: Effectiveness And Toxicity Compared To Corexit 9500a, David A. Ladner, Peng Xie, Ying Tu, Nicholas K. Geitner, Sean Powers, Andrew Whelton, Pu Chun Ke Dec 2014

Dendritic Polymers As Oil Spill Dispersants: Effectiveness And Toxicity Compared To Corexit 9500a, David A. Ladner, Peng Xie, Ying Tu, Nicholas K. Geitner, Sean Powers, Andrew Whelton, Pu Chun Ke

David A Ladner

No abstract provided.


Characterization Of Reverse Osmosis Membrane Foulants In Seawater Desalination, David Ladner Dec 2014

Characterization Of Reverse Osmosis Membrane Foulants In Seawater Desalination, David Ladner

David A Ladner

No abstract provided.